From: Stanislaw Gruszka Date: Mon, 19 Mar 2012 08:39:45 +0000 (+0100) Subject: rt2x00: rt2800usb: schedule txdone work on timeout X-Git-Tag: v3.4-rc2~37^2~30^2~4 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=b9fc106108f3faf2e4430c3bd5721677c3d6a4a1;p=~emulex%2Finfiniband.git rt2x00: rt2800usb: schedule txdone work on timeout This is fix for my current commit ed61e2b02027935520d1be884fac0b2ffce8379a "rt2x00: rt2800usb: rework txdone code" We should schedule txdone work on timeout, otherwise if newer get tx status from hardware, we will never report tx status to mac80211 and eventually never wakeup tx queue. Reported-by: Jakub Kicinski Signed-off-by: Stanislaw Gruszka Acked-by: Gertjan van Wingerde Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index cd490abced9..f97f84606f5 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -163,7 +163,13 @@ static bool rt2800usb_tx_sta_fifo_read_completed(struct rt2x00_dev *rt2x00dev, /* Reschedule urb to read TX status again instantly */ return true; - } else if (rt2800usb_txstatus_pending(rt2x00dev)) { + } + + /* Check if there is any entry that timedout waiting on TX status */ + if (rt2800usb_txstatus_timeout(rt2x00dev)) + queue_work(rt2x00dev->workqueue, &rt2x00dev->txdone_work); + + if (rt2800usb_txstatus_pending(rt2x00dev)) { /* Read register after 250 us */ hrtimer_start(&rt2x00dev->txstatus_timer, ktime_set(0, 250000), HRTIMER_MODE_REL);